Wyeast's London Ale strain is a classic strain for fermenting all sorts of English and British ales, specifically milds, browns, porters, and stouts. Some fruitiness is to be expected, especially near the high end of the temperature range for this yeast (60-72°F). A minerally finish on the palate is expected. This strain is recommended on some high gravity styles as it can attenuate well, fully fermenting the beers in question.
| Brand | Wyeast |
| Beer Styles | Northern English Brown, Brown Porter, Dry Stout, English Barleywine, Foreign Extra Stout, Mild, Old Ale, Robust Porter, Russian Imperial Stout |
| Alcohol Tolerance | 11% ABV |
| Attenuation | 73-77% |
| Flocculation | Medium-Low |
| Cell Count | 100 Billion |
| Temperature Range | 60-72 F |